66052102520 has 32 divisors (see below), whose sum is σ = 152633916000. Its totient is φ = 25706763648.

The previous prime is 66052102517. The next prime is 66052102601. The reversal of 66052102520 is 2520125066.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22313420 + ... + 22316379.

It is an arithmetic number, because the mean of its divisors is an integer number (4769809875).

Almost surely, 2^66052102520 is an apocalyptic number.

It is an amenable number.

66052102520 is an abundant number, since it is smaller than the sum of its proper divisors (86581813480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66052102520 is a wasteful number, since it uses less digits than its factorization.

66052102520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44629847 (or 44629843 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 66052102520 its reverse (2520125066), we get a palindrome (68572227586).

The spelling of 66052102520 in words is "sixty-six billion, fifty-two million, one hundred two thousand, five hundred twenty".